Answer:
Plot the ordered pairs (2, 5) and (4, 10). Start at (4, 10). Move right 2 and up 5, and then plot a point. Use the same rate to plot other points. You could also draw a line through the origin and the two given points. Any point on the line represents an equivalent ratio.
Step-by-step explanation:
-4(4)=-16
3(1/7)=3/7
I think that’s what you are asking...
Answer: The system of inequalities that models this situation are
p + b ≤ 30
12.5p + 9.5b ≥ 300
Step-by-step explanation:
Let p represent the number of hours he works at the pizzeria.
Let b represent the number of hours he works at the bookstore.
He cannot work more than 30 hours per week in order to attend classes. This means that
p + b ≤ 30
Marcus is working at a local pizzeria where he makes $12.50 per hour and is also working at the university bookstore where he makes $9.50 per hour. He must make at least $300 per week to cover his expenses. This means that
12.5p + 9.5b ≥ 300
Answer:
$27.50
Step-by-step explanation:
The amount of interest she will earn in a year is basically the initial amount multiplied by the rate of interest per year (in decimal).
We have to first convert 5 1/2% to decimal.
First,
1/2 means 0.5 (by dividing), so it becomes:
5.5%
Converting percentage to decimal is easy. We divide by 100, so we have:
5.5/100 = 0.055
Now we multiply:
500 * 0.055 = $27.5
So, in 1 year, Isabella earns an interest of $27.50
The cost of one chapstick is $1 and one eyeliner is $2.
Step-by-step explanation:
Let,
Cost of one chapstick = x
Cost of one eyeliner = y
According to given statement;
3x+2y=7 Eqn 1
4x+5y=14 Eqn 2
Multiplying Eqn 1 by 4
Multiplying Eqn 2 by 3
Subtracting Eqn 3 from Eqn 4
Dividing both sides by 7
Putting y=2 in Eqn 1
Dividing both sides by 3
The cost of one chapstick is $1 and one eyeliner is $2.
Keywords: linear equation, elimination method
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